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1   /**
2    * This file Copyright (c) 2003-2014 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.importexport;
35  
36  import org.apache.commons.lang.StringUtils;
37  
38  import java.io.File;
39  import java.util.Comparator;
40  
41  /**
42   * Comparator implementation used to ensure bootstrap files are imported according to the name length (shortest first).
43   * @author gjoseph
44   * @version $Revision: $ ($Author: $)
45   */
46  class BootstrapFilesComparator implements Comparator<File> {
47      // remove file with the same name in different dirs
48      @Override
49      public int compare(File file1, File file2) {
50          String name1 = getName(file1);
51          String name2 = getName(file2);
52  
53          String ext1 = getExtension(file1);
54          String ext2 = getExtension(file2);
55  
56          if (StringUtils.equals(ext1, ext2)) {
57              // a simple way to detect nested nodes
58              if (name1.length() != name2.length()) {
59                  return name1.length() - name2.length();
60              }
61          } else {
62              // import xml first
63              if (ext1.equalsIgnoreCase("xml")) {
64                  return -1;
65              } else if (ext2.equalsIgnoreCase("xml")) {
66                  return 1;
67              }
68          }
69  
70          return name1.compareTo(name2);
71      }
72  
73      private static String getExtension(File file) {
74          String ext = StringUtils.substringAfterLast(file.getName(), ".");
75          if (("." + ext).equals(DataTransporter.GZ) || ("." + ext).equals(DataTransporter.ZIP)) {
76              ext = StringUtils.substringAfterLast(StringUtils.substringBeforeLast(file.getName(), "."), ".");
77          }
78          return ext;
79      }
80  
81      private static String getName(File file) {
82          String name = StringUtils.substringBeforeLast(file.getName(), ".");
83          if (name.endsWith(DataTransporter.XML) || name.endsWith(DataTransporter.PROPERTIES)) {
84              name = StringUtils.substringBeforeLast(file.getName(), ".");
85          }
86          return name;
87      }
88  }